// 初始化样式
body,h1,h2,h3,h4,h5,h6,p,ul,ol,dl,dd {
   margin: 0;
   padding: 0;
   list-style: none;
   color: #666;
   font-size: 14px;
}
a {
   text-decoration: none;
   color: #666;
}
img,input {
   vertical-align: middle;
   border: none;
   outline: none;
   padding: 0;
}
.w {
   margin: 0 auto;
   width: 1190px;
}
.left {
   float: left;
}
.right {
   float: right;
}
.clearfix::after {
    content: "";
    display: block;
    clear: both;
}